Dumping-cage for crushers and pulverizers.



PATENTED NOV. 20, 1906.

M. F. WILLIAMS.

DUMPING GAGE FOR GRUSHBRS AND PULVERIZERS.

APPLIOATION FILED JULY 24. 1905.

\nvenhor. Millscm F. Williams. av flQ/MWTTYs Unirnn snares ra rnn'r OFFICE.

MILTON F. WlLLlAMS. OF

A CORPORATION OF MiSSOURI.

LOUIS, MISSOURL ASSIGNOR TO WILLIAMS PATENT ORUSHEE & PULVERIZER COMPANY, OF ST.

LOUIS, MISSOURI,

DUMPING-OAGE FOF! CRUSHERS AN D PULVERIZERS- g Specification of Letters Patent. Application filed July 24, 1905- Serial No. 271,017-

Patented Nov. 20, 1906.

To ail whom it may concern:

Be it known that I, MIL'roN F. WILLIAMS, a citizen of the United States, residing at the city of St. Louis, State. of Missouri, have invented a certain new and useful Improvement in Dumping-Cages for Crushers and Pulverizers, of which the following is a full, clear, and exact description, such as will. enable others skilled in the art towhich it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in whioh Figure '1 is a vertical sectional view through my improved machine. Fig. 2 is a vertical cross-sectional view on the line 2 2 of Fig. 1, and Fig. 3 is a horizontal sectional view on the line 3 3 of Fig. 1..

This invention relates to a new and useful improvement in dumping-cages for crushers and pulverizers, the object being to construct a cage in such manner that when the machine chokes it is possible to dump the contGI IlLS thereof without raising the cover and removing the material from .the top.

In the operation of my machine, especially where electric motors are employed as a driving medium, it sometimes happens that the fuse will blow out or other accidents happen. during the time that the machine is in operation, causing the machine to stop and leaving the material being. operated upon in the machine. Under these circumstances it is impossible to start the machine without first removing such material, it being necessary to get the machine up to full speed before introducing the material thereinto to be reduced.

My present invention therefore consists in making the grindingesurface or cage with which the revolving boaters cooperate to re duce the material wholly or partly movable, means for moving the same extending to the exterior of the machine whereby in the event that the machine stops with a load or be I comes choked it is possible for the operator machine.

to dump the contents of the cage and free the In the drawings, 1 indicates theside plates of the casing, and 2 is the cover.

3 indicates the breaker-plate arranged at the front end of the machine and on which the material is first operated upon by the revolving hammers or heaters 4, which are pivsisting of a plurality fcurved bars to which otally mounted in the hamnier-su ports 5, arranged on a transversely-dispose shaft 6. 7 indicates the cage or grinding-surface, which in this instance is shown as being composed of round rods arranged in curved side bars 8. The side bars of the cage are rovided with rack-teeth 9 on their lower e ges and also a smooth track portion 10, which latter rests upon and cooperates with antifriction-rollers 11, constituting the supports for the cage. Pinions 12, mounted on a shaft 1.3 at the rear end oi the machine, mesh with the rack-teeth 9. The hubs of these pinions cooperate with the track portions 10 of the curved side bars 8, so as to revent binding between the rack-teeth and t e teeth of the pinion 12. A gear 14, mounted on the end of shaft 13, meshes with a driving-pinion 15, which is connected to a hand-w ieel Preferably curved recesses 2 areiormed in the side walls of the cover 2 to permit the rearward and upward movement of the cage.

In operation if it is desired to dump the contents of the machine the hand-wheel 16 is manipulated, and through the train of gears above described the cage or grindingsurface' is moved bodily rearwardly and upwardly, so as to dump its contents. To restore the cage or grinding-surface to normal position it is only necessary to reverse the movement of the hand-wheel 16 until the cage is seated home against the breakerplate 3, which serves as a sto therefor. Preferably means is provided for ocking the cage home, the means which. is herein shown consisting of a pivoted pawl which cooper ates with the pinion 15.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is'

1. A crusher or pulveriier comprising a casing, revolving hammers or heaters mounted therein, an inclined breaker-plate mount ed in the casing, a curved grinding-surface abutting against said brcnkeeplate and conoi cage-bars, and two said cage-bars are connected, said curved lmrs being mounted in grooves formed in tho side walls of the casing, racleteeth on said curved bars, and a pinion cooperating wit h said teeth for moving said grinding-sorrow in a path concentric to the axes of rotation of said hammers or heaters and'away from said nichned breaker-plate so as to PIOVldG a space through Wlnch the contents of the machine may be dumped; sub- V is provided through which the contents of the stantielly as described.

v 2. A crusher or pulverizercomprising a j casing, revolving hammers or beaters 1nounted therein, a cage or grinding surface cooperating 'With sald beaters end .c0n1p1*ising E eprved bars having rack-teeth and track por tlons extendin' below said teeth, a grindingsurface carrie by said curved bars, antiflictiomrollers carried by the casing and cooperating with the track portions of said teeth of said bars, and means for driving said pinion so as to move sziirl cage toQand from normal operating, position whereby aspace machine may be discharged; substantially as described.

In testimony whereof I hereunto aflix. my signature,' in the presence of two witnesses, this 14th day of July,,1905.

MILTON F. WILLIAMS.

Witnesses:

F. R. C RNWALL, GEORGE BAKEWELL. 

